Search for anomalous Wtb couplings in single top quark production in ppbar collisions at sqrt(s) = 1.96 TeV

Collaboration, D0 and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Ross, Anthony and Williams, Mark and Ratoff, Peter (2012) Search for anomalous Wtb couplings in single top quark production in ppbar collisions at sqrt(s) = 1.96 TeV. Physics Letters B, 708 (1-2). pp. 21-26. ISSN 0370-2693

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Abstract

We present new direct constraints on a general $Wtb$ interaction using data corresponding to an integrated luminosity of 5.4 fb$^{-1}$ collected by the D0 detector at the Tevatron $p\bar{p}$ collider. The standard model provides a purely left-handed vector coupling at the $Wtb$ vertex, while the most general, lowest dimension Lagrangian allows right-handed vector and left- or right-handed tensor couplings as well. We obtain precise limits on these anomalous couplings by comparing the data to the expectations from different assumptions on the $Wtb$ coupling.

Item Type: Journal Article
Journal or Publication Title: Physics Letters B
Additional Information: Submitted to Phys. Lett. B
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63574
Deposited By: ep_importer_pure
Deposited On: 24 Apr 2013 08:13
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 08:23
URI: https://eprints.lancs.ac.uk/id/eprint/63574

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